突出显示消息框中的文本

时间：2009-04-20 14:29:02

标签： c# text message highlight

我需要显示一个消息框，但用户需要能够突出显示并复制消息框中的文本。我怎么做到这一点？仅供参考，在C＃中。

5 个答案:

答案 0 :(得分：8)

当用户在消息框处于活动状态时按CTRL + C时，Windows具有复制MessageBox文本的隐藏功能。

如果您需要允许用户突出显示文本，则需要创建自定义消息框才能执行此操作。

答案 1 :(得分：1)

以下是我用于创建自定义MessageBox的一些代码。以下是MessageBox类：

'  A custom MessageBox class
'  Written to allow custom button text, specifically to allow for bilingual messageboxes
'
Public Class CustomMessageBox

  'Variables
  Private _btn1Return As DialogResult
  Private _btn2Return As DialogResult
  Private _btn3Return As DialogResult

  'Enumerate system icons
  Enum SystemIcons
    ErrorIcon = 1
    WarningIcon = 2
    QuestionIcon = 3
    InformationIcon = 4
  End Enum

  'Enumerate possible button combinations
  Enum ButtonTypes
    YesNo = 1
    YesNoCancel = 2
    Ok = 3
    OkCancel = 4
  End Enum

  'Enumerate possible default buttons
  Enum DefaultButton
    Button1 = 1
    Button2 = 2
    Button3 = 3
  End Enum


#Region "Constructor"
  'Constructor
  Public Sub New(ByVal text As String, ByVal caption As String, ByVal buttons As ButtonTypes, ByVal icon As SystemIcons, ByVal defaultButton As DefaultButton)
    InitializeComponent()
    Me.Text = caption
    Me.msgBoxText.Text = text
    SetupIcon(icon)
    SetupButtons(buttons, defaultButton)
  End Sub
#End Region

#Region "Functions"
  'Set text and return values of all buttons.  Also set focus to default button.
  Private Sub SetupButtons(ByVal buttons As Integer, ByVal defaultButton As Integer)
    Select Case buttons
      Case 1
        msgBoxButton1.Text = My.Resources.Caption_Yes
        _btn1Return = Windows.Forms.DialogResult.Yes
        msgBoxButton2.Text = My.Resources.Caption_No
        _btn2Return = Windows.Forms.DialogResult.No
        msgBoxButton3.Visible = False
      Case 2
        msgBoxButton1.Text = My.Resources.Caption_Yes
        _btn1Return = Windows.Forms.DialogResult.Yes
        msgBoxButton2.Text = My.Resources.Caption_No
        _btn2Return = Windows.Forms.DialogResult.No
        msgBoxButton3.Text = My.Resources.Caption_Cancel
        _btn3Return = Windows.Forms.DialogResult.Cancel
      Case 3
        msgBoxButton1.Text = My.Resources.Caption_OK
        _btn1Return = Windows.Forms.DialogResult.OK
        msgBoxButton2.Visible = False
        msgBoxButton3.Visible = False
      Case 4
        msgBoxButton1.Text = My.Resources.Caption_OK
        _btn1Return = Windows.Forms.DialogResult.OK
        msgBoxButton2.Text = My.Resources.Caption_Cancel
        _btn2Return = Windows.Forms.DialogResult.Cancel
        msgBoxButton3.Visible = False
    End Select

    'Set focus to specified default button
    Select Case defaultButton
      Case 1
        msgBoxButton1.Focus()
      Case 2
        msgBoxButton2.Focus()
      Case 3
        msgBoxButton3.Focus()
    End Select

  End Sub

  'Display specified icon
  Private Sub SetupIcon(ByVal iconValue As Integer)
    Dim icon As Icon = Nothing
    Select Case iconValue
      Case 1
        icon = System.Drawing.SystemIcons.Error
      Case 2
        icon = System.Drawing.SystemIcons.Warning
      Case 3
        icon = System.Drawing.SystemIcons.Question
      Case 4
        icon = System.Drawing.SystemIcons.Information
    End Select

    Me.msgBoxIcon.Image = icon.ToBitmap
  End Sub
#End Region

#Region "Events"
  'Set return value when button is clicked.
  Private Sub msgBoxButton1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles msgBoxButton1.Click
    Me.DialogResult = _btn1Return
    Me.Close()
  End Sub

  'Set return value when button is clicked.
  Private Sub msgBoxButton2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles msgBoxButton2.Click
    Me.DialogResult = _btn2Return
    Me.Close()
  End Sub

  'Set return value when button is clicked.
  Private Sub msgBoxButton3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles msgBoxButton3.Click
    Me.DialogResult = _btn3Return
    Me.Close()
  End Sub
#End Region

End Class

以下是与之关联的设计师代码：

<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _
Partial Class CustomMessageBox
    Inherits System.Windows.Forms.Form

    'Form overrides dispose to clean up the component list.
    <System.Diagnostics.DebuggerNonUserCode()> _
    Protected Overrides Sub Dispose(ByVal disposing As Boolean)
        Try
            If disposing AndAlso components IsNot Nothing Then
                components.Dispose()
            End If
        Finally
            MyBase.Dispose(disposing)
        End Try
    End Sub

    'Required by the Windows Form Designer
    Private components As System.ComponentModel.IContainer

    'NOTE: The following procedure is required by the Windows Form Designer
    'It can be modified using the Windows Form Designer.  
    'Do not modify it using the code editor.
    <System.Diagnostics.DebuggerStepThrough()> _
    Private Sub InitializeComponent()
    Me.msgBoxText = New System.Windows.Forms.Label
    Me.msgBoxIcon = New System.Windows.Forms.PictureBox
    Me.TableLayoutPanel1 = New System.Windows.Forms.TableLayoutPanel
    Me.msgBoxButton1 = New System.Windows.Forms.Button
    Me.msgBoxButton3 = New System.Windows.Forms.Button
    Me.msgBoxButton2 = New System.Windows.Forms.Button
    CType(Me.msgBoxIcon, System.ComponentModel.ISupportInitialize).BeginInit()
    Me.TableLayoutPanel1.SuspendLayout()
    Me.SuspendLayout()
    '
    'msgBoxText
    '
    Me.msgBoxText.AutoSize = True
    Me.msgBoxText.Cursor = System.Windows.Forms.Cursors.Cross
    Me.msgBoxText.Dock = System.Windows.Forms.DockStyle.Fill
    Me.msgBoxText.FlatStyle = System.Windows.Forms.FlatStyle.Flat
    Me.msgBoxText.Location = New System.Drawing.Point(59, 0)
    Me.msgBoxText.MaximumSize = New System.Drawing.Size(245, 0)
    Me.msgBoxText.Name = "msgBoxText"
    Me.msgBoxText.Padding = New System.Windows.Forms.Padding(0, 10, 0, 10)
    Me.msgBoxText.Size = New System.Drawing.Size(39, 33)
    Me.msgBoxText.TabIndex = 6
    Me.msgBoxText.Text = "Label1"
    '
    'msgBoxIcon
    '
    Me.msgBoxIcon.Dock = System.Windows.Forms.DockStyle.Left
    Me.msgBoxIcon.Location = New System.Drawing.Point(0, 0)
    Me.msgBoxIcon.Name = "msgBoxIcon"
    Me.msgBoxIcon.Padding = New System.Windows.Forms.Padding(15, 10, 0, 0)
    Me.msgBoxIcon.Size = New System.Drawing.Size(59, 53)
    Me.msgBoxIcon.TabIndex = 4
    Me.msgBoxIcon.TabStop = False
    '
    'TableLayoutPanel1
    '
    Me.TableLayoutPanel1.AutoSize = True
    Me.TableLayoutPanel1.ColumnCount = 5
    Me.TableLayoutPanel1.ColumnStyles.Add(New System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 50.0!))
    Me.TableLayoutPanel1.ColumnStyles.Add(New System.Windows.Forms.ColumnStyle)
    Me.TableLayoutPanel1.ColumnStyles.Add(New System.Windows.Forms.ColumnStyle)
    Me.TableLayoutPanel1.ColumnStyles.Add(New System.Windows.Forms.ColumnStyle)
    Me.TableLayoutPanel1.ColumnStyles.Add(New System.Windows.Forms.ColumnStyle(System.Windows.Forms.SizeType.Percent, 50.0!))
    Me.TableLayoutPanel1.Controls.Add(Me.msgBoxButton1, 1, 0)
    Me.TableLayoutPanel1.Controls.Add(Me.msgBoxButton3, 3, 0)
    Me.TableLayoutPanel1.Controls.Add(Me.msgBoxButton2, 2, 0)
    Me.TableLayoutPanel1.Dock = System.Windows.Forms.DockStyle.Bottom
    Me.TableLayoutPanel1.GrowStyle = System.Windows.Forms.TableLayoutPanelGrowStyle.FixedSize
    Me.TableLayoutPanel1.Location = New System.Drawing.Point(0, 53)
    Me.TableLayoutPanel1.Name = "TableLayoutPanel1"
    Me.TableLayoutPanel1.Padding = New System.Windows.Forms.Padding(0, 0, 0, 10)
    Me.TableLayoutPanel1.RowCount = 1
    Me.TableLayoutPanel1.RowStyles.Add(New System.Windows.Forms.RowStyle)
    Me.TableLayoutPanel1.Size = New System.Drawing.Size(305, 39)
    Me.TableLayoutPanel1.TabIndex = 5
    '
    'msgBoxButton1
    '
    Me.msgBoxButton1.AutoSize = True
    Me.msgBoxButton1.Location = New System.Drawing.Point(34, 3)
    Me.msgBoxButton1.Name = "msgBoxButton1"
    Me.msgBoxButton1.Size = New System.Drawing.Size(75, 23)
    Me.msgBoxButton1.TabIndex = 0
    Me.msgBoxButton1.Text = "Button1"
    Me.msgBoxButton1.UseVisualStyleBackColor = True
    '
    'msgBoxButton3
    '
    Me.msgBoxButton3.AutoSize = True
    Me.msgBoxButton3.Location = New System.Drawing.Point(196, 3)
    Me.msgBoxButton3.Name = "msgBoxButton3"
    Me.msgBoxButton3.Size = New System.Drawing.Size(75, 23)
    Me.msgBoxButton3.TabIndex = 2
    Me.msgBoxButton3.Text = "Button3"
    Me.msgBoxButton3.UseVisualStyleBackColor = True
    '
    'msgBoxButton2
    '
    Me.msgBoxButton2.AutoSize = True
    Me.msgBoxButton2.Location = New System.Drawing.Point(115, 3)
    Me.msgBoxButton2.Name = "msgBoxButton2"
    Me.msgBoxButton2.Size = New System.Drawing.Size(75, 23)
    Me.msgBoxButton2.TabIndex = 1
    Me.msgBoxButton2.Text = "Button2"
    Me.msgBoxButton2.UseVisualStyleBackColor = True
    '
    'CustomMessageBox
    '
    Me.AutoScaleDimensions = New System.Drawing.SizeF(6.0!, 13.0!)
    Me.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font
    Me.AutoSize = True
    Me.ClientSize = New System.Drawing.Size(305, 92)
    Me.Controls.Add(Me.msgBoxText)
    Me.Controls.Add(Me.msgBoxIcon)
    Me.Controls.Add(Me.TableLayoutPanel1)
    Me.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog
    Me.MaximizeBox = False
    Me.MinimizeBox = False
    Me.Name = "CustomMessageBox"
    Me.SizeGripStyle = System.Windows.Forms.SizeGripStyle.Hide
    Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen
    Me.Text = "MessageBox"
    Me.TopMost = True
    CType(Me.msgBoxIcon, System.ComponentModel.ISupportInitialize).EndInit()
    Me.TableLayoutPanel1.ResumeLayout(False)
    Me.TableLayoutPanel1.PerformLayout()
    Me.ResumeLayout(False)
    Me.PerformLayout()

  End Sub
  Friend WithEvents msgBoxText As System.Windows.Forms.Label
  Friend WithEvents msgBoxIcon As System.Windows.Forms.PictureBox
  Friend WithEvents TableLayoutPanel1 As System.Windows.Forms.TableLayoutPanel
  Friend WithEvents msgBoxButton1 As System.Windows.Forms.Button
  Friend WithEvents msgBoxButton3 As System.Windows.Forms.Button
  Friend WithEvents msgBoxButton2 As System.Windows.Forms.Button
End Class

答案 2 :(得分：0)

我认为使用默认文本控件并不容易，但您可以尝试icsharpcode texteditor或Alsing's text editor control

我已经将icsharpcode用于类似的东西，它很容易使用。

答案 3 :(得分：0)

创建自定义消息框并使用已禁用的TextBox，并相应地设置样式以显示消息。

根据Jhonny的评论：创建一个新表单，并使用ShowDialog显示它

答案 4 :(得分：0)

向项目添加新表单。在Visual Studio中，您可以通过转到Project - ＆gt;来完成此操作。添加Windows窗体。

修改表单，直到您觉得它看起来足够接近标准窗口对话框。 您想要更改的一些属性：

  • FormBorderStyle
  • 中StartPosition
  • MaximizeBox
  • MinimizeBox
  • ShowIcon
  • ShowInTaskbar

使用ReadOnly Textbox作为表单的标签。并将文本框的BorderStyle设置为None。

最后，使用表单的ShowDialog（）方法将其显示为模式对话框。

PS。您还应该使用大量文本对其进行测试。您可能必须设置表单的自动调整大小模式并将文本框设置为多行并换行。

我希望有所帮助。

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